Ventilator.



C. H. MASON.

VENTILATOE.

APPLICATION PILEDMAR. 19, 1909.

Patented 11111151910.

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CHARLES H. MASON. OF NILES, OHIO.

VENTILATOR.

Maese.

Specification of Letters Patent.

atented Feb. 15. 1910.

To all whomt lmay concern.

Be it known that I, CHARLES H. MAsoN, a citizen of the United States, residing at Niles, in the county vof Trumbull and b`tate lof Ohio, have invented new and useful linprovements in ventilators, of which the following is a specification. i

This invention relates to ventilators, and more particularly to one adapted to be secured in a novel manner between the side members of a window frame and directly beneath the lower sash so that a sufficient quantity of pure air will be permitted to enter a room or the like, and to provide means for preventing the entrance of fiies or other insects entering a room by way of the'ventilator.

A still further object of my invention is to provide a ventilator in which air in any desired quantity will be permitted to enter a room or inclosiire, and to provide simple and novel means for excluding from the room sleet, snow or rain.

Other objects and advantages will be apparent as the nature of the invention is better set forth, and it will be understood that changes within the scope of the claims may be resorted to without departing from the spirit of the invention.

In the drawing, forming a portion of this specififation and in which like numerals of reference indicate similar partsin the several views Figure 1 is a front elevatioirof the ventilator. Fig. 2 is a vertical section taken on the line 2v2 of Fig. 1. Fig. 3 is a rear elevation of the ventilator. Fig. 1 is a vertical section taken on the line 1 /1 of Fig'. 3f

Referringnow more particularly to the drawing, there is shown a ventilator coinprising a member 1 which is preferably;l

formed fi'oin a sheet of metal preferably rectangular in forni and provided with longitiidiiially extending folded edge portions 2 which folded portions are pressed out-1 wardly adjacent. to their outer ends to forni f guideways 3 in which extension members or plates et are slidably engaged. The members 4 are provided with curved hand engaging portions 5 so that the said members can be manually manipulated in an effective manner. The member 1 is stamped to form longitudinally extending spaced slots 5', and extending inwardly from the lower walls of said slots are upwardly and angularly extending portions 6 to which are secured in any suitable manner the lower extremities of plates T having bent end portions H that are secured at their edges to the member l in any suitable manner.

lt is obvious that the plates 'l' forni with the portions f3 a series of longitudinally extending spaced pockets and in each pocket is revolubly mounted a damper f). The pintles 1() of the said danipers are journaled in the end portions 8 of the plates T and each pintle cari-ies at one end a winged portion 11 which may be engaged by the. lingers of the operator of thedevice so as to control the angular movement' of the dainpers 9.

Upon the rear face of the plate or niembe-' 1 is a pluiality of horizontally disposed guide brackets 1Q. The member oi' plate 1 is also provided with a pair of guide brackets 13 located beyond the ends of the slots 5 as will be readily seen upon reference to Fig. B of the drawing. A frame 111 is removably engaged with the guide brackets 12 and 13 and the said frame which is preferably of rectangular form has a covering 15 of foiaminous material which lies across the slots 5 formed in the plate or member 1.

In operation when it is desired to place the device in its operative position with iespect to a window frame, the lower sash is raised sufficiently to permit the ventilator to be inserted between the bottom of the lower sash and the bottom of the frame. Should it be 'found that the ventilator is too short, the plates 4 may be adjusted and moved outwardly so as to accurately close the spaces at the ends of the ventilator and between the window frame and the ends of said ventilator. lVhen it is desired to pci'- init air to a room or similar inclosure, the danipers 9 are moved into the dotted line positions shown in Fig. Q of the drawing, thus allowing free passage ot' air from the exterior of a room to the iiiterioi` thereof. In case of a beating rain` the dampeis 9 can be closed or partly closed at the will of the operator so as to obviate the entrance of rain into the room. ln view of the fact that the. portions G are inclined upwardly ai'idinwardly, the pockets formed by said portions (5 and the plates T will be etfectively emptied of any moisture and the latter will be free to pass outwardly and excluded from the room.

1. A ventilator comprising a member having a plurality of'slots formed therein, said member having a series of pockets communicating with the slots and provided with downwardly inclined bottom walls, revoluble dampers mounted in the walls of the said l. pockets, guide brackets upon one side of the said member, and a removable screencarrying frame engaged in the said guide brackets.

2. A Ventilator of the class described com- 'j prising a member having .air inlet slots, said member having pockets communicating with said slots, said pockets having downwardly and outwardly inclined dampers located in said pockets, a remov- 15 able screen carrying frame at one side of said member, and adjustable plates slidably engaged with said member.

ottoms,

In testimony whereof I aflix my signature in presence of two witnesses.

Witnesses:

ROY A. VVEsTWoon, JosnPn SMITH.

CHARLES ll. MA SON. l' 

